EP 0234044 A3 19880907 - COATED SHEET STOCK
Title (en)
COATED SHEET STOCK
Publication
Application
Priority
US 81446185 A 19851230
Abstract (en)
[origin: EP0234044A2] Disclosed is a method of making an improved aluminum alloy coated sheet stock useful for fabricating into easy-open ends for beverage containers. The method comprises the steps of providing a body of an aluminum base alloy comprising, by weight, 4.0 to 5.5% Mg, 0.2 to 0.7% Mn, 0.05 to 0.40% Cu, the balance being aluminum, incidental elements and impurities and rolling the body to produce an aluminum sheet stock. The sheet stock is subjected to a structure refining operation to precipitate finally divided magnesium containing constituent and thereafter the sheet stock is coated with an organic coating material and cured at a temperature sufficiently low and for a period of time to avoid dissolving the precipitated constituent to provide coated sheet stock having improved levels of tensile strength and high levels of formability
IPC 1-7
IPC 8 full level
C22C 21/06 (2006.01); B05D 7/14 (2006.01); C22F 1/00 (2006.01); C22F 1/04 (2006.01); C22F 1/047 (2006.01)
CPC (source: EP US)
B05D 7/14 (2013.01 - EP US); C22F 1/047 (2013.01 - EP US)
Citation (search report)
- [A] GB 1136394 A 19681211 - BRITISH ALUMINIUM CO LTD
- [A] US 3801379 A 19740402 - BLACKWELL J
- [A] CH 480197 A 19691031 - WIELAND WERKE AG [DE]
- [A] FR 2333053 A1 19770624 - CEGEDUR [FR]
- [A] US 3617395 A 19711102 - FORD FRANCIS P
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0234044 A2 19870902; EP 0234044 A3 19880907; AU 6699786 A 19870702; BR 8606525 A 19871020; JP H0762222 B2 19950705; JP S63443 A 19880105; US 4812183 A 19890314
DOCDB simple family (application)
EP 86117982 A 19861223; AU 6699786 A 19861224; BR 8606525 A 19861230; JP 31601586 A 19861229; US 81446185 A 19851230